CN109777545A - A kind of biogas desulfurization system and sulfur method - Google Patents
A kind of biogas desulfurization system and sulfur method Download PDFInfo
- Publication number
- CN109777545A CN109777545A CN201910215710.9A CN201910215710A CN109777545A CN 109777545 A CN109777545 A CN 109777545A CN 201910215710 A CN201910215710 A CN 201910215710A CN 109777545 A CN109777545 A CN 109777545A
- Authority
- CN
- China
- Prior art keywords
- biogas
- tank
- desulfurizing tower
- regeneration
- rich solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of biogas desulfurization system and sulfur methods, the system includes desulfurizing tower, rich solution slot, lean liquid tank, regeneration tank, sulphur foam tank, flame filter press, gas-liquid separator and biogas surge tank, biogas inlet duct passes sequentially through booster fan, tubular heat exchanger is connected to desulfurizing tower, the desulfurizing tower, rich solution slot, regeneration tank is sequentially communicated, the regeneration tank is respectively communicated with lean liquid tank and sulphur foam tank, the lean liquid tank is connected to desulfurizing tower, the sulphur foam tank is connected to flame filter press, the gas-liquid separator is connected to biogas surge tank, the biogas surge tank have condensation water out and biogas into, outlet, structure of the invention is simple, desulfuration efficiency is high, hydrogen sulfide content in biogas can be down to 50ppm or less, meet methane boiler to hydrogen sulfide in methane content requirement, and after system can be to reaction Doctor solution carry out regeneration treatment, improve the utilization rate of doctor solution, reduce operating cost.
Description
Technical field
The present invention relates to biogas desulfurization technical field more particularly to a kind of biogas desulfurization system and sulfur methods.
Background technique
Biogas is various organic substances, and in isolation air (anaerobic condition), and under suitable temperature, pH value, process is micro-
A kind of combustible gas that the fermentation of biology generates.Biogas belongs to secondary energy sources, and is renewable energy, and every cubic metre
The calorific value of biogas is about 20800-23600 kilojoule, is equivalent to the heat of 0.7 kilogram of anthracite offer, therefore is a kind of fine
The energy.The main component of biogas includes: 50%-80% methane (CH 4), 20%-40% carbon dioxide (CO2), 0%-
5% nitrogen (N2), the hydrogen (H less than 1%2), the oxygen (O less than 0.4%2) and 0.1%-3% hydrogen sulfide (hydrogen sulfide) etc.
Gas composition.
Biogas is generated in industrial production at present mostly from anaerobic fermentation process, generate biogas and be generally used to power generation, for natural pond
Gas or methane boiler burning generate steam or hot water, are used for plant area and use or directly burn for resident or make biology naturally
Gas.Due to containing certain hydrogen sulfide in biogas, because hydrogen sulfide has very strong corrosiveness, if into methane boiler or power generation
Machine easily corrodes equipment and conveying pipeline inner wall, causes equipment damage or safety accident.Therefore, biogas using preceding have into
Row desulfurization process, before generally entering methane boiler or generator, hydrogen sulfide in methane content should be less than 200ppm.However most systems
The high-concentration waste waters such as medicine, chemical industry cause its Anaerobic Treatment to generate hydrogen sulfide in methane content because containing sulfur-containing compound in raw material
It is higher.Hydrogen sulfide in methane concentration is more than 5000ppm, some are even as high as 30000ppm or more.Such concentration of H 2 S takes off
Except frequently with sodium hydroxide wet absorption, but the method operating cost is higher, usually above biogas utilization cost, thus most enterprises
Industry is discharged after this part biogas directly burns.This mode not only causes energy waste, and the burning of hydrogen sulfide in methane also can
Cause environmental pollution.
Summary of the invention
The purpose of the present invention is to solve disadvantage existing in the prior art, and a kind of biogas desulfurization system that proposes and
Sulfur method.
To achieve the goals above, present invention employs following technical solutions:
A kind of biogas desulfurization system, including desulfurizing tower, rich solution slot, lean liquid tank, regeneration tank, sulphur foam tank, flame filter press, gas-liquid
Separator and biogas surge tank, biogas inlet duct passes sequentially through booster fan, tubular heat exchanger is connected to desulfurizing tower, described de-
Sulphur tower, rich solution slot, regeneration tank are sequentially communicated, and the regeneration tank is respectively communicated with lean liquid tank and sulphur foam tank, the lean liquid tank and de-
The connection of sulphur tower, the sulphur foam tank are connected to flame filter press, and the gas-liquid separator is connected to biogas surge tank, the biogas
Surge tank has condensation water out and biogas import and export.
Preferably, double film gas storage holders and filter are connected with before the biogas inlet duct.
Preferably, the tubular heat exchanger is provided with matched cooling tower, and the cooling tower is connected to by water circulating pump
On tubular heat exchanger.
Preferably, there are two the booster fan settings, two booster fans are parallel to biogas inlet duct and change with tubulation
Between hot device.
Preferably, the desulfurizing tower is connected with desulfurizing tower fluid-tight, for sealing.
Preferably, it is provided with rich solution pump between the rich solution slot and regeneration tank, is arranged between the lean liquid tank and desulfurizing tower
There is lean pump.
Preferably, sulphur foam pump is provided between the sulphur foam tank and flame filter press.
Preferably, the doctor solution is the lye of the cobalt of the mountain valley with clumps of trees and bamboo containing phthalein sulfonated bodies catalyst.
The present invention also provides a kind of biogas desulfurization methods, comprising the following steps:
(1) anaerobic digester system generates biogas and first passes around filter partial impurities and condensed water removal in biogas, enters
It is cached in double film gas storage holders, then pressurized blower pressurization enters desulfurizing tower；
(2) biogas enters from the lower part of desulfurizing tower, and counter current contacting, hydrogen sulfide are taken off in packing area with top-down doctor solution
Sulphur liquid is absorbed, wherein the biogas after desulfurization enters gas-liquid separator by escape pipe after demister, in gas-liquid separator
In, biogas and moisture are separated, and the hydrogen sulfide content of biogas is down to 50ppm or less；The doctor solution of hydrogen sulfide is absorbed from spray
Tower and packed tower underflow enter rich solution slot, then squeeze into regeneration tank through rich solution pump pressurization, are aoxidized again in regeneration tank with air
Raw, the lean solution after regeneration enters lean liquid tank from the overflow of regeneration tank top, is boosted by lean pump and is sent into desulfurizing tower cyclic absorption；
(3) de- in rich solution slot when the sodium salt contents such as doctor solution sodium sulphate, sodium thiosulfate in rich solution slot reach certain value
Sulphur liquid needs outlet to update, and primary emission amount is about 7t, and every half a year, discharge was primary, this partial desulfurization liquid is delivered to total plant area's sewage
Processing system uniformly carries out processing qualified discharge；
(4) elementary sulfur being precipitated in regeneration tank floats at the top of regenerator, and overflow enters in regeneration tank annular overflow weir, and gravity flow enters
Foam tank, sulphur foam squeeze into flame filter press by foam pump, and filter liquor is recycled from rich solution slot is flowed back to, at sulphur mud outward transport
Reason；
(5) condensed water that gas-liquid separator separates be fed directly to total plant area's sewage disposal system handle it is up to standard after discharge.
The invention has the benefit that
Structure of the invention is simple, desulfuration efficiency is high, uses the lye of the cobalt sulfonated bodies catalyst of the mountain valley with clumps of trees and bamboo containing phthalein can as doctor solution
Hydrogen sulfide content in biogas is down to 50ppm hereinafter, meeting methane boiler to hydrogen sulfide in methane content requirement, and system energy
Enough doctor solutions to after reaction carry out regeneration treatment, improve the utilization rate of doctor solution, reduce operating cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of biogas desulfurization system proposed by the present invention；
Fig. 2 is a kind of flow chart of biogas desulfurization method proposed by the present invention.
In figure: 1 first desulfurizing tower, 2 second desulfurizing towers, 3 rich solution slots, 4 lean liquid tanks, 5 regeneration tanks, 6 sulphur foam tanks, 7 gas-liquids
Separator, 8 first booster fans, 9 second booster fans, 10 cooling towers, 11 water circulating pumps, 12 tubular heat exchangers, 13 biogas are slow
Rush tank, 14 rich solution pumps, 15 lean pumps, 16 flame filter presses, 17 sulphur foam pumps, 18 biogas inlet ducts.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1, a kind of biogas desulfurization system, including the first desulfurizing tower 1, the second desulfurizing tower 2, rich solution slot 3, lean liquid tank 4,
Regeneration tank 5, sulphur foam tank 6, gas-liquid separator 7, the first booster fan 8, the second booster fan 9, tubular heat exchanger 12, biogas are slow
Rush tank 13, flame filter press 16 and biogas inlet duct 18, wherein double film gas storage holders are connected with before the biogas inlet duct 18
With filter (not shown), anaerobic digester system generates biogas and first passes around filter the partial impurities, solidifying in biogas
Removal is born water, into caching in double film gas storage holders, desulphurization system, the biogas entrance are then entered by biogas inlet duct 18
Pipeline 18 passes sequentially through the first booster fan 8, the second booster fan 9, tubular heat exchanger 12 and the first desulfurizing tower 1, the second desulfurization
Tower 2 is connected to, and two booster fans are parallel between biogas inlet duct 18 and tubular heat exchanger 12, first desulfurizing tower 1, the
Two desulfurizing towers, 2 serial or parallel connection, desulfurizing tower is built-in to be equipped with doctor solution, and the doctor solution is the alkali of the cobalt of the mountain valley with clumps of trees and bamboo containing phthalein sulfonated bodies catalyst
Liquid can remove the hydrogen sulfide in biogas by doctor solution, the first desulfurizing tower 1, the second desulfurizing tower 2 and rich solution slot 3, regeneration tank 5 according to
Secondary connection, the regeneration tank 5 are respectively communicated with lean liquid tank 4 and sulphur foam tank 6, and the lean liquid tank 4 and the first desulfurizing tower 1, second are de-
Sulphur tower 2 is connected to, and the sulphur foam tank 6 is connected to flame filter press 16, and the gas-liquid separator 7 is connected to biogas surge tank 13,
The biogas surge tank 13 has condensation water out and biogas import and export.
The tubular heat exchanger 12 is provided with matched cooling tower 10, and the cooling tower 10 is connected to by water circulating pump 11
On tubular heat exchanger 12.First desulfurizing tower 1, the second desulfurizing tower 2 can be connected with desulfurizing tower fluid-tight, the gas-liquid separator
7 are connected with gas-liquid separator fluid-tight, and for sealing, rich solution pump 14 is provided between the rich solution slot 3 and regeneration tank 6, described poor
Lean pump 15, the sulphur foam tank 6 and flame filter press 16 are provided between liquid bath 4 and the first desulfurizing tower 1, the second desulfurizing tower 2
Between be provided with sulphur foam pump 17.
Structure of the invention is simple, desulfuration efficiency is high, uses the lye of the cobalt sulfonated bodies catalyst of the mountain valley with clumps of trees and bamboo containing phthalein as doctor solution
Hydrogen sulfide content in biogas can be down to 50ppm hereinafter, meeting methane boiler to hydrogen sulfide in methane content requirement, and be
System can carry out regeneration treatment to the doctor solution after reaction, improve the utilization rate of doctor solution, reduce operating cost.
As shown in Fig. 2, using the biogas desulfurization method of above system.The following steps are included:
(1) anaerobic digester system generates biogas and first passes around filter the partial impurities removal in biogas, into double film gas storage
It is cached in cabinet, then pressurized blower pressurization enters desulfurizing tower, and desulfurizing tower includes the first desulfurizing tower and the second desulfurizing tower；
(2) biogas enters from the lower part of desulfurizing tower, and counter current contacting, hydrogen sulfide are taken off in packing area with top-down doctor solution
Sulphur liquid is absorbed, wherein the biogas after desulfurization enters gas-liquid separator by escape pipe after demister, in gas-liquid separator
In, biogas and moisture are separated, and the hydrogen sulfide content of biogas is down to 50ppm or less；The doctor solution of hydrogen sulfide is absorbed from spray
Tower and packed tower underflow enter rich solution slot, then squeeze into regeneration tank through rich solution pump pressurization, are aoxidized again in regeneration tank with air
Raw, the lean solution after regeneration enters lean liquid tank from the overflow of regeneration tank top, is boosted by lean pump and is sent into desulfurizing tower cyclic absorption；
(3) de- in rich solution slot when the sodium salt contents such as doctor solution sodium sulphate, sodium thiosulfate in rich solution slot reach certain value
Sulphur liquid needs outlet to update, and primary emission amount is about 7t, and every half a year, discharge was primary, this partial desulfurization liquid is delivered to total plant area's sewage
Processing system uniformly carries out processing qualified discharge；
(4) elementary sulfur being precipitated in regeneration tank floats at the top of regenerator, and overflow enters in regeneration tank annular overflow weir, and gravity flow enters
Foam tank, sulphur foam squeeze into flame filter press by foam pump, and filter liquor is recycled from rich solution slot is flowed back to, at sulphur mud outward transport
Reason；
(5) condensed water that gas-liquid separator separates be fed directly to total plant area's sewage disposal system handle it is up to standard after discharge.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of biogas desulfurization system, which is characterized in that including desulfurizing tower, rich solution slot, lean liquid tank, regeneration tank, sulphur foam tank, plate
Frame filter, gas-liquid separator and biogas surge tank, biogas inlet duct pass sequentially through booster fan, tubular heat exchanger and desulfurization
Tower connection, the desulfurizing tower, rich solution slot, regeneration tank are sequentially communicated, and the regeneration tank is respectively communicated with lean liquid tank and sulphur foam tank, institute
It states lean liquid tank to be connected to desulfurizing tower, the sulphur foam tank is connected to flame filter press, the gas-liquid separator and biogas surge tank
Connection, the biogas surge tank have condensation water out and biogas import and export.
2. a kind of biogas desulfurization system according to claim 1, which is characterized in that be connected with before the biogas inlet duct
Double film gas storage holders and filter.
3. a kind of biogas desulfurization system according to claim 2, which is characterized in that the tubular heat exchanger is provided with mating
Cooling tower, the cooling tower is connected on tubular heat exchanger by water circulating pump.
4. a kind of biogas desulfurization system according to claim 3, which is characterized in that there are two the booster fan settings,
Two booster fans are parallel between biogas inlet duct and tubular heat exchanger.
5. a kind of biogas desulfurization system according to claim 4, which is characterized in that the desulfurizing tower is connected with desulfurizing tower liquid
Envelope, for sealing.
6. a kind of biogas desulfurization system according to claim 5, which is characterized in that set between the rich solution slot and regeneration tank
It is equipped with rich solution pump, is provided with lean pump between the lean liquid tank and desulfurizing tower.
7. a kind of biogas desulfurization system according to claim 6, which is characterized in that the sulphur foam tank and flame filter press
Between be provided with sulphur foam pump.
8. a kind of biogas desulfurization system according to claim 7, which is characterized in that the doctor solution is the sulfonation of the cobalt of the mountain valley with clumps of trees and bamboo containing phthalein
The lye of object catalyst.
9. a kind of sulfur method using biogas desulfurization system according to any one of claims 8, which comprises the following steps:
(1) anaerobic digester system generates biogas and first passes around filter partial impurities and condensed water removal in biogas, enters
It is cached in double film gas storage holders, then pressurized blower pressurization enters desulfurizing tower；
(2) biogas enters from the lower part of desulfurizing tower, and counter current contacting, hydrogen sulfide are taken off in packing area with top-down doctor solution
Sulphur liquid is absorbed, wherein the biogas after desulfurization enters gas-liquid separator by escape pipe after demister, in gas-liquid separator
In, biogas and moisture are separated, and the hydrogen sulfide content of biogas is down to 50ppm or less；The doctor solution of hydrogen sulfide is absorbed from spray
Tower and packed tower underflow enter rich solution slot, then squeeze into regeneration tank through rich solution pump pressurization, are aoxidized again in regeneration tank with air
Raw, the lean solution after regeneration enters lean liquid tank from the overflow of regeneration tank top, is boosted by lean pump and is sent into desulfurizing tower cyclic absorption；
(3) de- in rich solution slot when the sodium salt contents such as doctor solution sodium sulphate, sodium thiosulfate in rich solution slot reach certain value
Sulphur liquid needs outlet to update, and primary emission amount is about 7t, and every half a year, discharge was primary, this partial desulfurization liquid is delivered to total plant area's sewage
Processing system uniformly carries out processing qualified discharge；
(4) elementary sulfur being precipitated in regeneration tank floats at the top of regenerator, and overflow enters in the overflow weir of regeneration tank annular, flows into certainly
Enter foam tank, sulphur foam squeezes into flame filter press by foam pump, and filter liquor is recycled from rich solution slot is flowed back to, at sulphur mud outward transport
Reason；
(5) condensed water that gas-liquid separator separates be fed directly to total plant area's sewage disposal system handle it is up to standard after discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215710.9A CN109777545A (en) | 2019-03-21 | 2019-03-21 | A kind of biogas desulfurization system and sulfur method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215710.9A CN109777545A (en) | 2019-03-21 | 2019-03-21 | A kind of biogas desulfurization system and sulfur method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109777545A true CN109777545A (en) | 2019-05-21 |
Family
ID=66488602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910215710.9A Pending CN109777545A (en) | 2019-03-21 | 2019-03-21 | A kind of biogas desulfurization system and sulfur method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109777545A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923026A (en) * | 2019-11-18 | 2020-03-27 | 西安长庆科技工程有限责任公司 | Skid-mounted desulfurization device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851090A (en) * | 2012-09-03 | 2013-01-02 | 杭州萧山管道燃气发展有限公司 | Biogas dry-type filtering desulphurization system and preparation method thereof |
| CN204710066U (en) * | 2015-06-17 | 2015-10-21 | 山东健通新能源科技有限公司 | Biogas recirculation desulfurization preparation facilities |
| CN206793412U (en) * | 2017-05-10 | 2017-12-26 | 东莞新盈能源利用有限公司 | A kind of desulfurization regeneration system |
| CN107805525A (en) * | 2017-11-17 | 2018-03-16 | 杭州能源环境工程有限公司 | A kind of desulphurization system and its sulfur method suitable for methane purification |
| CN108579373A (en) * | 2018-05-18 | 2018-09-28 | 华夏碧水环保科技有限公司 | It is a kind of to be directed to desulphurization system and its sulfur method containing high-concentration hydrogen sulfide biogas |
| WO2019028558A1 (en) * | 2017-08-11 | 2019-02-14 | Co2 Solutions Inc. | Sox capture using carbonate absorbent |
-
2019
- 2019-03-21 CN CN201910215710.9A patent/CN109777545A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851090A (en) * | 2012-09-03 | 2013-01-02 | 杭州萧山管道燃气发展有限公司 | Biogas dry-type filtering desulphurization system and preparation method thereof |
| CN204710066U (en) * | 2015-06-17 | 2015-10-21 | 山东健通新能源科技有限公司 | Biogas recirculation desulfurization preparation facilities |
| CN206793412U (en) * | 2017-05-10 | 2017-12-26 | 东莞新盈能源利用有限公司 | A kind of desulfurization regeneration system |
| WO2019028558A1 (en) * | 2017-08-11 | 2019-02-14 | Co2 Solutions Inc. | Sox capture using carbonate absorbent |
| CN107805525A (en) * | 2017-11-17 | 2018-03-16 | 杭州能源环境工程有限公司 | A kind of desulphurization system and its sulfur method suitable for methane purification |
| CN108579373A (en) * | 2018-05-18 | 2018-09-28 | 华夏碧水环保科技有限公司 | It is a kind of to be directed to desulphurization system and its sulfur method containing high-concentration hydrogen sulfide biogas |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923026A (en) * | 2019-11-18 | 2020-03-27 | 西安长庆科技工程有限责任公司 | Skid-mounted desulfurization device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102583930A (en) | Livestock excrement biogas generation method and livestock excrement biogas generation system | |
| CN110155953B (en) | Device and process for treating low-concentration acid gas to recover sulfur | |
| CN1745877A (en) | Method and apparatus for managing hydrogen sulfide tail gas | |
| CN108579373B (en) | Desulfurization system and desulfurization method for biogas containing high-concentration hydrogen sulfide | |
| CN103552992A (en) | System and method for preparing acid by using sulfur-containing wastewater through dry method | |
| CN101492222A (en) | Method for comprehensive treatment of wastewater and sludge gas utilization of cane sugar factory | |
| CN201168557Y (en) | Flue gas processing system | |
| CN203549850U (en) | Organic waste gas comprehensive disposal system | |
| CN205381962U (en) | Molten sulfur degasification system | |
| CN207598302U (en) | A kind of electricity-water co-generation system | |
| CN109777545A (en) | A kind of biogas desulfurization system and sulfur method | |
| CN206902139U (en) | A kind of biogas Preparation equipment | |
| CN210320092U (en) | Tail gas treatment system in carbon disulfide production | |
| CN100411713C (en) | Regeneration process of pregnant absorbing solution and washing solution for the alkaline desulfurizing procedure of SO2 containing gas | |
| CN110115929A (en) | A kind of sulfur recovery facility sour gas alkali washing process | |
| CN104971601B (en) | Acid gas vertical reactor and processing method | |
| CN105727714B (en) | A kind of process and device for producing NaHS | |
| CN206823499U (en) | A kind of processing system of Claus device exhausts | |
| CN205856262U (en) | Biogas electricity generation apparatus in technique for treating industrial wastewater | |
| CN110055118A (en) | A kind of method and device of biogas desulfurization | |
| CN211706407U (en) | Desulfurization system | |
| Deng et al. | Biogas cleaning and upgrading | |
| CN203359987U (en) | Device for acquiring sulfur from sulfur compounds of coal chemical industry and power plant | |
| CN203612956U (en) | Low-temperature waste heat recovery system used in pyrite and smelting exhaust gas acid preparing device | |
| CN106241887A (en) | A kind of chemical plant waste hydrochloric acid comprehensive utilization treatment process and special MVR evaporation concentrator thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190521 |